Temmie is a species of monster in the Underground. They appear as a unique enemy in Waterfall, residents of Temmie Village, and the vendor of Tem Shop.

Contrary to popular belief, killing Temmie accrues EXP and is considered a kill by the game, which will cause a True Pacifist Route attempt to fail.

The Temmie are all girls and they are all named "Temmie" except for "Bob". They also resemble cat and dog.

Community content is available under CC-BY-SA unless otherwise noted.